Why does Darwin feel that nature is better suited as a selector than man?

Darwin argues that nature is a more effective selector than man because it operates through a process of natural selection, which is driven by environmental pressures and survival challenges that are constantly changing. This process allows for a more rigorous and unbiased evaluation of traits, as only those individuals best adapted to their environment survive and reproduce. In contrast, human selection can be arbitrary and influenced by subjective preferences, potentially leading to less optimal outcomes in terms of adaptability and fitness in the natural world. Thus, nature's selection fosters a more robust and resilient population over time.